Home / 19,068.21-28,603.11-7,220.82

Finding the Fourth Proportional to 19,068.21, 28,603.11 and 7,220.82

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Solution

The fourth proportional to 19,068.21, 28,603.11 and 7,220.82 is: 10,831.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,068.21 : 28,603.11 = 7,220.82 : x
  2. Step 2: Convert to fraction form
    19,068.21/28,603.11 = 7,220.82/x
  3. Step 3: Cross multiply
    19,068.21x = 28,603.11 × 7,220.82
  4. Step 4: Simplify right side
    19,068.21x = 206,537,908.75
  5. Step 5: Solve for x
    x = 206,537,908.75/19,068.21
  6. Step 6: Final answer
    x = 10,831.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.